Latch



LATCH Filed Sept. 14, 1925 avwewi'oz 6mm a; o

Patented Jan. 3, 1928.

UNITED STATES LONG BEACH, CALIFORNI WI LIAM H. onnnnn, or

' LATCH.

Application filed September 14, 1925 Serial No. 563293.

This invention relates to a latch designed primarily for use upon-doors and the like and one ofthe objects is to provide a latch which can be shifted by the tilting of the knob so as to cause the latch tobecome disengaged from its keeper. A further object is to provide a latch the working parts of which, other than the knob and the head of the latch, are concealed within the door.

A still further object is to provide a latch all parts of which are carried by a single attaching plate which can be applied read- '7 ily to a door without requiring the services of a skilled mechanic.

A still further object is to provide a latch which will be released by a direct pull upon the knob.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and'arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may bemade with in the scope of what is. claimed without departing from the spirit of the invention.

In the accompanying'drawings the preferred form of the invention has been shown.

In said drawings, Figure 1 is a section through a portion of a doorand its jamb, the latch being shown in elevation in engagement with its keeper.- 7 v Figure 2 is a side elevation of the complete latch removed from the door.

Figure 3 is a view partly in side elevation.

and partly in section showing'how thelatch can be disengaged from its keeper by tilting the knob.

Figure 4 is a top plan view of the latch. Figure 5 isan end elevation thereof. Referring to the figures by characters of reference A designates a portion of a door and B designates a portion of the jamb, there being a keeper C attached to the jamb and provided with an outstanding portion D for engagement by the head of the latch.

The latch includes an attaching plate 1 having an opening 2 and extending from one face of the attaching plate are spaced ears 3 in which is mounted a pivot pin 4. The

arin 5 ot the latchis mounted on the pivot 'pin' and is provided, at one end, with a head 6 for engagement with the keeper. Extending from one edgev of the arm 1s a finger 7 provided within notch8 and mounted in this notch is a link 9 attached to one end ota pin 10. through a knob 11. Thus it will be seen that the link and the pin constitute a flexible connection between the finger 7 and the knob. Y 1

A spring 12 straddles the finger 7 and bears within the notch 8. Opposed portions of this spring are coiled about'the pin 4 and the terminals of the spring, which'have been indicated at 13, bear agalnst the plate 1. Thus the spring tends at all times to hold the head, 6 and arm 5 in keeper engaging position, a pull being exerted by finger 7 through link 9 and pin 10 upon theknob 11.

Thus the base of the knob will be normally Said pin is extended I pressed against the plate 10 a cover disk I l t housing the plate. 1

It will benoted by referring to Figure 5' that the ears 3 are formed by cuttingaway segmental portions of the plate 1 to properly shape the said ears and then bending the ears at right angles; This leaves a tongue 15 with the ears 3 extending the side edges thereof.

It will be understood that when it'is desired to release'the latch from its keeper it is merelynecessary to pull upon the knob 11. This pullwill be transmitted through the connection 9 10 to the finger 7 with the result that said finger will be drawn from the position shown in Figure 2 back against the plate 1, thereby action of the springLZ. When the knob is released the spring will return the parts to ment therewith, this operation taking place without shifting the knob 11, because of the flexible connection between the finger 7.

and the knob.

--The laitchcan also be disengaged from its keeper by tiltingthe knob as shown in'Figfrom lifting the head 6 out of engagement with the keeper and against the inn ure 3. When this is done the base of the knob will fulcrum on the cover plate 14 and a pull. will be exerted upon finger 7 and thence to the arm 5. This release Will take place no matter in What direction the knob may be tilted.

\Vhat is claimed is: v

1. A door latch including a plate, an arm pivotally mounted on the plate -for engagement' With a keeper, an operating knob slidably and tiltaloly mounted relative to the plate, and a connection between said knob and the arm for shifting said arm to released position during the sliding or tilting action of the knobrelative to the plate.

2. A latch including-a plate having an opening, a keeper engaging arm pivota-lly mounted on the plate, a knob, a pin carried by the knob and extending loosely through the opening in the plate for sliding and tilting movemen't'in the openin and a link I a e connection between the pin and the arm for shifting the arm toone extreme position'dur- In testimony that I claim the foregoing my own, I have hereto affixed my signature.

' I WILLIAM H. GREENE. 

